MAL-2026-444 Malicious code in terminalbrush (PyPI)
Malicious package
Published
MAL-2026-444 is a malicious package: terminalbrush (PyPI). Every version was published to cause harm.
Task:
1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.
2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.
3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.
4. If the package is not used anywhere, say so and change nothing.
Reference: https://insights.sbomify.com/MAL-2026-444/ (Markdown: https://insights.sbomify.com/MAL-2026-444/index.md)
- Package
- terminalbrush
- Registry
- PyPI
What is MAL-2026-444?
MAL-2026-444 is a malicious package in terminalbrush, published on 21 Jan 2026.
Official description
Package downloads an executable, places it distinguished as a Python binary and starts it. At the time of analysis, the URL was no longer active, so it was not possible to confirm the exact behaviour.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-01-old-terminalbrush
Reasons (based on the campaign):
- Downloads and executes a remote executable.
What should I do about MAL-2026-444?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.